convection

Air heated by a space heater rises and is replaced by cool air, creating a convection current that circulates hot air throughout a room.

con·vec·tion

(kən-vĕk′shən)

1. The act or process of conveying; transmission.

2. Physics

a. Heat transfer in a gas or liquid by the circulation of currents from one region to another.

b. Fluid motion caused by an external force such as gravity.

3. Meteorology The transfer of heat or other atmospheric properties by massive motion within the atmosphere, especially by such motion directed upward.

[Late Latin convectiō, convectiōn-, from convectus, past participle of convehere, to carry together : Latin com-, com- + Latin vehere, to carry; see wegh- in Indo-European roots.]

con·vec′tion·al adj.

con·vec′tive adj.

con·vec′tive·ly adv.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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References in periodicals archive

The convective clouds are developing rapidly and are likely to generate short-term, heavy rainfall.

Heavy rain alert issued in 14 counties, cities in Taiwan

According to the National Centre of Meteorology (NCM), rain is expected in some parts of the UAE on Friday as there is a probability of rainy convective clouds formation in the afternoon.

Here's the latest weather update across UAE

In other parts of the country, today's skies will be looking partly cloudy with a chance of some convective clouds forming in the eastern (Fujairah) and southern (Abu Dhabi) regions.

Saturday rainshowers in the UAE

(2019) with refinement to convective scales reported in Hazelton et al.

TOWARD CONVECTIVE SCALE PREDICTION WITHIN THE NEXT GENERATION GLOBAL PREDICTION SYSTEM: The variable-resolution version of a Finite-Volume Cubed-Sphere Dynamical Core (FV3)-based global model improves the prediction of convective-scale features while maintaining skillful global forecasts

"That is true up to some effect that very strong clouds and very strong convective conditions in clouds prevent the radar from detecting very accurately", said Commanding-in-Chief, Western Air Command, Raghunath Nambiar while talking to ANI.

Clouds do prevent radars from detecting accurately: Air Marshal Raghunath Nambiar

The first part of the book reviews the fundamental properties of convective burning and low-velocity detonation, and the second considers the application of convective burning and low-velocity detonation in barrel, missile, nozzle, and explosive devices.

Convective Burning and Low-Velocity Detonation in Porous Media

Since that episode, we do not mess with thunderstorms, and get no closer than the FAA-recommended 20 miles to any convective activity.

Express Elevator Up

Orville, "The Relationship between Lightning Type and Convective State of Thunderclouds" in the Journal of Geophysical Research, 94(D11):13213-13220,1989.

More To It Than That

Radar echoes show consecutive genesis of mesoscale convective system that propagated towards the key area from southwest to northeast.

Characteristic Features of the Evolution of a Meiyu Frontal Rainstorm with Doppler Radar Data Assimilation

Furthermore, convective heat transfer phenomena cause thermally induced mechanical stresses compromising the reliability of engine components.

The convection heat transfer rate evaluation of a 6-cylinder in-line tur-bocharged direct-injection diesel engine